The duty cycle is 30% at 90 amps. The maximum you may weld continuously is 3 minutes. The duty cycle defines the number of minutes, within a 10 minute period, during which a given machine can safely produce a particular current. If the machine working time reaches to the maximum working time according to the duty cycle, the thermal protector will activate and the “Overload Indicator” will illuminate. The machine will automatically shut down until it cools, then you may resume welding again.
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Klutch MIG/Flux-Core Multi-Process Welder with Inverter Technology, 120 Volts, 140 Amp Max. Output, Up to 3/16in. Steel

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$19.99 Same DayStore Pickup:
2 in stock at Fredericksburg VA - Pickup in under 1 hr
- Versatile MIG + Flux-Core Welding: Supports MIG welding with shielding gas or flux-core welding for gasless operation in outdoor and draft-prone environments
- Welds up to 3/16in. Steel: Designed for mild steel and stainless steel applications with dependable penetration and strength for fabrication, repair and maintenance projects
- Lightweight Inverter Technology: Advanced inverter design reduces weight by up to 50% compared to traditional welders while maintaining stable arc performance and consistent weld quality
- 30–140 Amp Output Range: Broad output range with infinite voltage and wire feed speed controls allows precise adjustment for thin sheet metal and thicker material applications
- Standard 120V Operation: Plugs directly into a standard 120V household outlet without requiring special wiring for convenient use in garages and workshops
Prop 65 Warning: See Details
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Description
Key Specs
Reviews
Q & A
Accessories
Warranty
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Product Summary
What's Included
- (1) Klutch MIG Welder (1) MIG torch (1) Regulator and gas valve (1) Ground cable and clamp (1) Gas hose (2) Contact tips (1) Flux-core nozzle
Downloads

Features + Benefits

- Versatile MIG + Flux-Core Welding: Supports MIG welding with shielding gas or flux-core welding for gasless operation in outdoor and draft-prone environments
- Welds up to 3/16in. Steel: Designed for mild steel and stainless steel applications with dependable penetration and strength for fabrication, repair and maintenance projects
- Lightweight Inverter Technology: Advanced inverter design reduces weight by up to 50% compared to traditional welders while maintaining stable arc performance and consistent weld quality
- 30–140 Amp Output Range: Broad output range with infinite voltage and wire feed speed controls allows precise adjustment for thin sheet metal and thicker material applications
- Standard 120V Operation: Plugs directly into a standard 120V household outlet without requiring special wiring for convenient use in garages and workshops
- Gas + Gasless Flexibility: Use shielding gas for cleaner MIG welds or switch to flux-core wire for welding without gas
- User-Friendly Wire Feeder Access: Hinged access door allows fast wire loading and spool changes to help minimize downtime
- Complete Ready-to-Weld Kit: Includes welding gun, regulator, gas hose, ground clamp, contact tips and flux-core nozzle for immediate use out of the box
- CSA Approved: Certified for safety and durability to provide dependable long-term welding performance
Key Specs
| Attribute | Specification |
|---|---|
item# | 4856738 |
Brand | Klutch |
Manufacturer's Warranty | 1 year limited warranty |
Ship Weight | 27.0 LB |
Volts | 120 |
Max. Amps | 140 |
Power Type | DC |
Multi-process | No |
Spool Gun Included | No |
Welding Processes | Flux-Core, MIG |
Max. Weld Thickness | 0.188 in |
Max. Welding Wire Diameter | 0.035 in |
Duty Cycle | 30% |
| Attribute | Specification |
|---|---|
Weldable Materials | Steel |
Min. Amps | 30 |
Wire Feed Speed Control | Yes |
Cart Included | No |
Mig Ready | Yes |
Power Cord Length | 6.5 ft |
Clamp Cable Length | 6.5 ft |
Electrode Cable Length | 0 ft |
Regulator and Gas Hose Included | Yes |
Shielding Gas Required | No |
Product Weight | 24.2000 lb |
Dimensions L x W x H (in.) | 18.0 x 8.5 x 13.0 in |
Reviews
Questions & Answers
Questions
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· a month ago
What is the duty cycle ratio? How long can I weld continuously?
1 answer-
KlutchExpert11· a month ago
Helpful?
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· a month ago
Where do you purchase a new conductive liner.
1 answer-
KlutchExpert11· a month ago
A replacement conductive liner is not available for the welder.
Helpful?
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· 2 months ago
Where can I buy a replacement welding lead if the gas tube inside leaks?
1 answer-
KlutchExpert12· 2 months ago
The wire feeder assembly, part #KLH4856738.12, can be purchased through our sister company, Jacks Small Engines. Please visit www.JacksSmallEngines.com for pricing and availability.
Helpful?
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· 9 months ago
Is the wire feed aluminum or plastic
1 answer-
KlutchExpert12· 9 months ago
The wire feeder is plastic.
Helpful?
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· 10 months ago
How to switch it from gasless to mig. I'm sure i have to reverse the polarity
1 answer-
KlutchExpert12· 10 months ago
The MIG electrode polarity jumper should be connected to the positive (+) DINSE socket. The ground cable would then be connected to the negative (-) DINSE socket. Please make sure to use the drive roll marked "V". Attach the included gas hose to the regulator's outlet and the welder's gas inlet. Wrench tighten both connections. Then, connect the gas regulator with the gas cylinder.
Helpful?
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· 11 months ago
I just received my klutch 140. I noticed in the directions that it specifies different wire drives for MIG vs flux core. In the owners manual it says to use a v drive roller for MiG and a KV drive roller for flux core. Does the unit come with both?
1 answer-
KlutchExpert12· 11 months ago
The welder is ready for MIG and flux-core welding, which means it should include both necessary drive rollers.
Helpful?
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· a year ago
Can this unit be powered by a generator, if so what rating required?
1 answer-
KlutchExpert12· a year ago
This welder requires 15 amps on a 120 volt circuit. A generator rated for 2,000 continuous watts or greater is recommended.
Helpful?
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· a year ago
I just bought this welder earlier this week and I was wondering Can I use this welder as a power source to stick weld with?
1 answer-
KlutchExpert12· a year ago
This welder is not designed for stick welding. It is not equipped with any receptacles to power auxiliary products.
Helpful?
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· a year ago
Do you sell replacement contact tips for the gun?
1 answer-
KlutchExpert12· a year ago
This welder uses Tweco style contact tips. It can be uses with .030" tips like item 48316 or .035" tips like item 48318.
Helpful?
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· 2 years ago
Does it have a lift tag attachment?
1 answer-
KlutchExpert12· a year ago
This welder does not have a lift TIG option.
Helpful?
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Warranty
Manufacturer's Warranty
1 year limited warranty
Extend Your Warranty Coverage with a Northern Protection Plan (NPP)
Replacement Plan — 1 Year
A Northern Protection Plan is available after adding the product to your shopping cart.
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Specifications
120
115/230
120/240
115/230
140
210
200
210
DC
AC
AC
AC
No
Yes
Yes
Yes
No
No
No
-
Flux-Core, MIG
Flux-Core, MIG
Flux-Core, MIG, Stick, TIG
Flux-Core, MIG
0.188 in
0.38 in
0.38 in
0.38 in
0.035 in
0.045 in
0.45 in
0.045 in
30%
30% At 150a
Mig-120v: 30% At 110a; 240v: 30% At 165a
30% At 150a
Steel
Steel, Stainless Steel, Aluminum
Aluminum, Steel, Stainless Steel
Steel, Stainless Steel, Aluminum
30
25
20
-
Yes
Yes
Yes
Yes
No
No
No
No
Yes
Yes
Yes
Yes
6.5 ft
5.6 ft
6.5 ft
5.6 ft
6.5 ft
10 ft
10 ft
10 ft
0 ft
-
10 ft
-
Yes
Yes
Yes
Yes
No
No
Yes
No
24.2000 lb
79.0000 lb
38.4000 lb
lb
18.0 x 8.5 x 13.0 in
19.5 x 10.62 x 12.37 in
20.8 x 10.6 x 13.4 in
19.5 x 10.62 x 12.37 in
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Klutch MIG/Flux-Core Multi-Process Welder with Inverter Technology, 120 Volts, 140 Amp Max. Output, Up to 3/16in. Steel
Item # 4856738
Order today to get this price.









